The Classic Responsive Skin features a 1- or 2-column design that is optimized for both speed and technical SEO.
Design options include simple layout controls and extensive font, size, and color customizations. Any changes you make are “intelligent” and fully-integrated throughout your design.
For example, when you make font and size changes, you actually have to tweak many other things to maintain proportionality in the design. Classic Responsive uses a bit of golden ratio magic and smartly adjusts everything in the layout to match your preferred settings.